Combined gaining and bobjng machine



D. M NEIL COMBINED GAINING AND BORING MACHINE April 26, 1932.

Original Filed April 22, 1929 4 Sheets-Sheet D. M NEIL' COMBINED GAINING AND BORING MACHINE April 26, 1932. Re. 18,440

Original Filed April 22, 1929 4 P 2 pm 41 MW D. M NEIL A il 2 1932 COMBINED GAINING AND BORING MACHINE R 18 440 I Original Filed April 22, 1929 4 Sheets-sheet x i I A n T i i H air 5 m D. M NEIL A il 26, 1932 COMBINED GAINING AND BORING MACHINE Re, 18,440

Original Filed April 22, 1929 4 hee -Shed 4 QUINN-[PH Y O Ivar? 75 Darya 7 lff/WI/ Reissued Apr. 26, 1932 UNITE STATES DUNCAN MCNEIL, OF SAN FRANCISCO, CALIFORNIA COMBINED GAINING AND BORING MACHINE Original No. 1,802,824, dated April 28, 1931, Serial No. 357,093, filed April 22, 1929. Application for reissue filed February 10, 1932.

The object of my invention is to provide efiicient means for cutting and boring the gains, or grooves of telephone and telegraph poles, and the like, in which to insert the arm or cross-piece.

In order to attain uniformity and sym metry in the line of the poles the cross arms must be arranged horizontally notwithstanding any deformation of bow of the pole. Furthermore, in order that the poles may be alined correctly the curve of the bow must be arranged in the vertical plane of the line in which the poles are set up. Also the roof is cut so that the axis of the dihedral is transverse of the gain, but coincident with the line of the poles.

By my invention I provide a machine adapted to cut and bore the gains of the poles uniformly and quickly in the mill so that the poles when taken out into the field are ready to have said cross-trees bolted to them and the poles set up without delay, and when set up will present a uniform and symmetrical ap earance.

nother object of my invention is to provide a machine adapted to cut and bore the gains of the poles with a minimum of work, thereby to prepare each pole at a minimum of cost and without waste such as would be occasioned by the spoiling of any of the poles, since a pole with a gain improperly cut must be thrown aside for it would be refused by the power company for whom it was prepared.

A further object is to provide means for rapidly and properly positioning the poles to be bored and cut.

I attain these objects in my combined gaining and boring machine which comprises in combination with means adapted to support the work in horizonal position, a support, a frame mounted for longitudinal and trans verse movement relative to the supportand thus to the axis of the pole-and a groove cutting tool and a boring tool carried as a. unit by said frame.

The mounting of said tool as a unit is one of the essential features of my invention. By reason of such arrangement after the groove cutting tool has been operated to cut the Serial No. 593,402.

groove in which to place and secure the cross arm, the boring tool is then operated to bore the holes for the bolts at exactly right angles to the plane of the gain or groove produced; the boring operation being performed directly after the gaining operation, and while the machine is still in the place in which it performed the gaining operation, in that way assuring that the bores or holes for the bolts are accurately centered in the gain and thus located alined with the longitudinal axis of the pole whichassuming that the cross arms have bores properly located at their middleassures the symmetrical arrangement of the cross-arms uniformly throughout the line of poles.

In the practice of my invention I have found it most convenient to employ a swingingly supported frame; that is to say, a frame supported pendent so as to have both lineal and arcuate movement on its support, thus adapted to move the tool-unit both axially and transversely of the pole or work. Such arrangement is a mere matter of choice.

However, for convenience I will describe my invention arranged as mentioned.

In connection with my invention herein described I prefer to use the machine for roofing telegraph poles which is described in my pending application entitled Roofing machine, Serial No. 318,002, filed November 8, 1928.

The specific features, the details of construction and the mode of operation of my machine are hereinafter fully described with reference to the accompanying drawings.

In the drawings:

Fig. 1 shows a perspective view of my combined gaining and boring machine and illustrates a pole in position to be cut and bored;

Fig. 2 shows an elevation of my gaining and boring machine and illustrates the relative arrangement of the machine and the pole;

Fig. 3 shows a section taken on the line 33 of Fig. 2, and illustrates my machine in position after the gain has been cut, but before being bored;

Fig. l shows similarly a side elevation of my machine and illustrates the position of the machine after the gain has been cut;

Fig. 5 shows a view of the boring machine taken from the opposite side to that shown in Fig. 2;

Fig. 6 shows a section taken on the line 6-6 of Fig. 5;

Figs. 7, 8 and 9 show the details, of. 0.011.- struction of the means provided for positioning the pole; and i Figs. 10, 11 and 12 illustrate further details, of construction of the positioning means.

Referring to Figs. 1 to 7 my invention comprises a superstructure a carrying a horizontal shaft b on which a frame 0 is suspended as at 0 for longitudinal movement and for movement in a limited transverse arc. V a c.

To the rear side of the frame a is secured a plate 01, carrying an electric motor e on its upper portion and on its lower portion a series of saws f preferably of the dado type mounted on an arbor g journaled on the said plate, the saws f being driven by the motor 6 by means of a belt h. 7

The plate 03 is adapted for vertical movement on the frame 0 by means of transverse bars 2' riveted to the plate d on the side adjacent the frame and provided on each end -with offset portions i forming a slot in which the adjacent portions of the angles forming the sides of the frame care arranged.

The means provided for moving the plate cl vertically comprise. an elevating screw provided on its lower end with a bevelgear 7c journaled in the lower transverse member 0 of the frame 0 and threaded at its upper end into a nut lcarried by the plate d, and a horizontal shaft m journaled in the frame 0 as at m which is provided on one end with a bevel gear n in mesh with the gear 7: and r on the other with a hand operating wheel 79. To the other side of the frame 0 from the plated are fixed vertical, parallel bars 9 on which is mounted for movement thereon a bracket ,r'carrying a motor .9 to the shaft of which is fixed a wood boring bit t extending downward through a guide hole u in the lower transverse member 0 of the frame.

A lever 2 is pivoted on the frame, as, at 3 and connected by a link 4 to the bracket 1' so that the bit It may be lifted from the work, and a lug 2a provided on the, said lever 2 is engageable in a notch 5 formed in a segmental section 6 carried by the frame 0 to normally hold the bit uplifted and out of engagement with the Work, its own weight carrying it downward, when the lever 2 is released.

A U-shaped handle 10 is provided onthe frame 0 near its lower end for convenience in swinging the frame through its are.

A spring seated latch ll is carried in a bracket 12 affixed to the frame 0 near the top and adjacent the superstructure a, which is adapted to engage with a series of stops 13 carried by the said superstructure. The latch 11 is rounded 011 one side face 11a and the stops 13 are rounded on the opposite side faces 13a to permit the frame a to be moved along the shaft Z) without interference in one direction, but to act as a stop to movement in the other direction, until the latch 11 is disengaged by pulling the lanyard 14. The stops 13 are adapted to be arranged on the superstructure a for the various positions of the frame 0.

A counter weight 15 is provided carried by the frame 0 on a bar 15a, for normally holding the frame in a vertical position as shown in Fig. 3.

A depending guide rod 16 is suspended from the superstructure a and adapted to serve as a guide for positioning the poles.

I also provide a depth guide 19 comprising a flexible element preferably a short section of chain suspended from the lower edge of the plate d in such a position and of such length that its end will just sweep the pole positioned under it as the frame is swung forward to indicate that the saws f are properly set to cut the full depth of their adjustment.

In order to hold the pole properly positioned so that the gain will be cut horizontally and transverse of the longitudinal axis of the pole, I provide supports 20 and 21 so alined as to bring the pole into position perpendicular to the cut of the saws f and the bit It, see Figs.- 7 to 12.

The supports 20 and 21 are provided with rollers 22 and 23, but the support 20 is also provided with means for raising or lowering the pole and for moving it to one side or the other so that the required position of the pole under the machine may be conveniently attained.

The roller 22 carried by the block 20 is relatively immovable, but a member 24 pro.- vided with a V-shaped notch is arranged adjacent the roller whichis adapted for lateral movement in a frame 25, by means of a screw 26, threaded in a depending section 24aof the member 24, and journaled on the frame 25 in a depending section 25a. The screw 26 is provided on its other end with an operating hand wheel 27.

The frame 25 is adjustable vertically by means of a downwardly extendin portion 30 provided with a rack bar 31 in which a gear wheel 29 meshes. The gear wheel 29 is mounted on a shaft 32 journaled as at 320 on the support 20, and provided on its end with a crank lever 326 connected with suitable operating means 33, only partly shown in Figs. 1 and 12.

The operation of my boring and gaining 011 the rollers 22 and 23 until it is under the frame 0, and the smaller end is adjacent the saw w of the roofing machine and the guide rod 15.

To position the pole vertically and laterally the plate 25 is raised by means of the levers .33 and adjusted laterally by means of the hand wheel 27 until the end of the pole bears against the guide rod 16, and thus the pole will be ready to be gained and bored.

By these means and by rotating the pole about its longitudinal axis the pole is conveniently positioned so that any bow or curve from its longitudinal axis will be arranged in planes perpendicular to the cut of the saws and the gains will be cut transverse of the said bow or curve.

The pole being properly positioned and the saws f and bit t in operation, the operator grasps the handle 10 and pulls the frame 0 towards him, which brings the saws f in contact with the pole to cut the transverse groove or gain. The handle is then released and the frame swings back to its vertical position due to the counter weight 15, and the lever 2 is released from the notch 5, so that the wood boring bit which is normally in correct alinement descends on the pole in the center of the gain and bores the hole through it for the bolt of the cross-arm after which the operator lifts the bit 6 and engages the lever 2 with the segmental plate 6.

Thus when the cross-arm is bolted in the gains so out, they will be transverse of any longitudinal deformation of the pole, and the pole when set in line in the field will present a symmetrical appearance with the rest of the poles, all the cross arms being the same relative distance from the top of the pole and the poles being individually positioned so that when looking down the line they will appear to be straight and perpendicular to the ground, and the cross-arms in horizontal planes.

If more than one gain is to be cut in the pole, the operator slides the frame 0 on the shaft 5, until the latch 11 has passed over the stop 14 and bears against the opposite side of it so that the frame a is then positioned for cutting the next gain, and the operation is ready to be repeated, as illustrated in To move the frame 0 back to its first position the operator grasps the lanyard 14 to disengage the latch 11 from the stop 14:.

I claim:

1. A combined gaining and boring machine comprising a frame supported for swinging and bodily sliding movement, a plate sliclably mounted with respect to the frame, a cutting element carried by the plate, a motor for operating the element carried by the plate, means whereby the plate may be adjusted and fixed in any adjusted position with respect to the frame, a boring tool mounted for reciprocationvertically of the frame, a motor for the tool movable therewith, and manually operable means whereby the boring tool and motor therefor may be moved to an inoperative position and held in such position.

2. A combined gaining and boring machine comprising a frame mounted for swinging and sliding movement and includingspaced parallel bars, a plate supported for sliding movement with respect to said bars, a cutter carried by the plate, a motor for operating the cutter carried by the plate, means arranged between the bars of the frame for adjusting the plate longitudinally of the frame and fixing said plate in adjusted position, guide bars carried by the frame, a power driven tool slidably mounted on the guide bars, and a manually operable lever for movingthe power driven tool to an inoperative position.

3. A combined gaining and boring machine comprising a support, a frame mounted for swinging and sliding movement relative to said support, independent tools carried by the frame, independent means for adjusting said tools with respect to the frame, and manually controlled means whereby the frame may be locked in varying predetermined positions in its sliding relation to the support.

4. A combined gaining and boring machine comprising a support, a frame mounted for swinging and sliding movement relative to said support, independent tools carried by the frame, independent means for adjusting said tools with respect to the frame, stops on the support, and a manually operated stop on the frame to cooperate with the support carried stops to determine the sliding position of the frame with respect to the support.

5. A combined gaining and boring machine comprising a support, a frame mounted for swinging and sliding movement relative to said support, independent tools carried by the frame, independent means for adjusting said tools with respect to the frame, stops on the support, and a manually operated stop on the frame to cooperate with the support carried stops to determine the sliding position of the frame with respect to the support,

said stops cooperating in all operative swinging positions of the frame.

6. A combined gaining and boring machine including a support, a frame mounted for sliding and swinging movement with respect to the support and including spaced bars, a plate slidable on one face of the bars, a cutter carried by the plate, a motor for operating the cutter carried by the plate, a threaded rod arranged intermediate the bars for vertically adjusting the plate with respect to the bars, means operative from beyond the bars for actuating said rod in either direction, guide rods carried by the bars on the side opposite the plate, a power driven boring tool slidable on said rods and positioning itself during operation by gravity, and means for manually raising the boring tool to. an inoperative position. g e 5 7. A. combined gaining and boring machine comprising a support, a frame element mounted for" longitudinal and transverse movement relative to said support, and a grooving tool and a boring tool carried as a unit by said frame, the boring tool being arranged at right angles to the plane of the groove produced by the grooving tool, and centrally of such groove.

8. A combined gaining and boring machine comprising a. support, a frame element 'mounted for longitudinal and transverse movement relative to said support, and a grooving tool and a boring tool carried as a unit by said frame, the boring tool being arranged at right angles to the plane of the groove produced by the grooving tool, and centrally of such groove, and means Whereby the frame is held in the place to which longitudinally moved on said support.

- DUNCAN MoNEIL. 

